Botkin, Daniel B., Environmental science : earth as a living planet / Daniel B. Botkin, Edward A. Keller. - Ninth edition. - xviii, 625, [34] pages : illustrations (chiefly color), maps (chiefly color) ; 29 cm. Includes bibliographical references and index. ISBN: 9781118427323 (hardback) 1118427327 (hardback) LCCN: 2015430431 Subjects--Topical Terms: Environmental sciences.Human ecology. LC Class. No.: GE105 / .B65 2014